[NatureNS] lots of empty FW Mussel shells- why?

From: darrell@abolitphotos.ca
To: naturens@chebucto.ns.ca
Date: Fri, 16 May 2014 23:54:50 +0100
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Muskrats live in beaver lodges with the beavers, look at this muskrat 
on the beavers back. This is why you see mussel shells near beavers, no 
other reason Fred. 
   
  
http://abolitphotos.exposuremanager.com/p/animals/_mg_0595muskratontopof3beaver_3
   
  All the best,
  Darrell
   
   
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   

On Fri, 16 May 2014 18:44:08 -0400, Fred Schueler <bckcdb@istar.ca> wrote:
On 5/16/2014 6:06 PM, darrell@abolitphotos.ca wrote:
>
> > A beaver is a herbivore. They might nibble on mussels for calcium. 
>
> * but there are situations where you see shells associated with 
> intense Beaver activity, and in areas where there aren't any or many 
> Muskrats. I've seen this especially in northern Ontario where 
> trappers assure me there are few or no Muskrats. In general, Rodents 
> are herbivores only to the extent that they can't catch up with 
> animal prey - Muskrats, Red Squirrels, and Deer Mice are all active 
> predators on various animal prey. A few years ago there was a 
> discussion of Beaver predation on mussels on the UNIO-L mussel e-mail 
> list, and while a number of observers supported my idea that they're 
> predators on mussels, only one person from Alabama (no winter ice!) 
> had actually seen a Beaver eating a mussel. 
>
> > Muskrats are what is eating the mussels, no doubt in my mind, as simple
> > as it might be.Been trapping all my life off and on as my father. You
> > always see mussels on the river bank and lake shores in what we call
> > feed beds for muskrats. They do get washed into deeper water. 
>
> * certainly this is usually the case, especially in places where the 
> shells are up on shore in heaps. 
>
> > Racoons do swim as well, ask any coon hunter that uses dogs, they 
> will actually
> > drown a dog by getting on top of their heads. you have to be careful
> > when hunting racoons around water with dogs. Sure they likely do not
> > swim regularly but they do swim and very well. 
>
> * but to they dive for food? Has anyone on the list seen a mammal 
> eating a freshwater mussel?
>
> fred. 
> ------------------------------------------------------------
> Frederick W. Schueler & Aleta Karstad
> Daily Paintings - http://karstaddailypaintings.blogspot.com/
> Vulnerable Watersheds - http://vulnerablewaters.blogspot.ca/
> study our books - http://pinicola.ca/books/index.htm
> RR#2 Bishops Mills, Ontario, Canada K0G 1T0
> on the Smiths Falls Limestone Plain 44* 52'N 75* 42'W
> (613)258-3107 <bckcdb at istar.ca> http://pinicola.ca/
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>

   


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